overleaf/libraries/metrics
Eric Mc Sween c5778fdd05 Merge pull request #5488 from overleaf/em-refactor-logger
Refactor logger module to separate concerns

GitOrigin-RevId: cf9b1e367d881fb9036b2cb0f5c0529763a44695
2021-10-28 08:04:00 +00:00
..
.circleci Fix startup crash 2020-09-17 10:30:25 -04:00
test Merge pull request #4689 from overleaf/jpa-libraries-ci 2021-08-13 12:56:39 +00:00
.eslintrc Install prettier and eslint 2020-09-11 15:59:33 -04:00
.gitignore [misc] prepare for monorepo 2021-07-27 16:33:33 +01:00
.npmignore Add .npmignore to avoid publishing config files 2020-09-17 10:44:24 -04:00
.nvmrc Merge pull request #5552 from overleaf/bg-node-upgrade-other 2021-10-26 08:03:13 +00:00
.prettierrc Install prettier and eslint 2020-09-11 15:59:33 -04:00
buildscript.txt Merge pull request #5552 from overleaf/bg-node-upgrade-other 2021-10-26 08:03:13 +00:00
CHANGELOG.md Merge pull request #5488 from overleaf/em-refactor-logger 2021-10-28 08:04:00 +00:00
event_loop.js Install prettier and eslint 2020-09-11 15:59:33 -04:00
http.js Merge pull request #5488 from overleaf/em-refactor-logger 2021-10-28 08:04:00 +00:00
index.js Merge pull request #5488 from overleaf/em-refactor-logger 2021-10-28 08:04:00 +00:00
LICENSE Create LICENSE 2014-09-08 09:19:39 +01:00
memory.js Install prettier and eslint 2020-09-11 15:59:33 -04:00
mongodb.js Install prettier and eslint 2020-09-11 15:59:33 -04:00
open_sockets.js [misc] fix collection of open sockets 2020-11-06 15:16:14 +00:00
package-lock.json Merge pull request #5488 from overleaf/em-refactor-logger 2021-10-28 08:04:00 +00:00
package.json Merge pull request #5488 from overleaf/em-refactor-logger 2021-10-28 08:04:00 +00:00
prom_wrapper.js [misc] do not register a noop sweeping interval 2021-01-12 14:20:51 +00:00
README.md Add basic README 2021-03-16 12:03:53 +00:00
timeAsyncMethod.js Install prettier and eslint 2020-09-11 15:59:33 -04:00
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overleaf/metrics-module

Wrappers the prom-client npm module to provide Prometheus metrics at /metrics.

Use:

const metrics = require('@overleaf/metrics')
metrics.initialize('myapp')

const express = require('express')
const app = express()
metrics.injectMetricsRoute(app)

Request logging can be enabled:

const logger = require('logger-sharelatex')
...
app.use(metrics.http.monitor(logger))

The metrics module can be configured through the following environment variables:

  • DEBUG_METRICS - enables display of debugging messages to the console.
  • ENABLE_TRACE_AGENT - enables @google-cloud/trace-agent on Google Cloud
  • ENABLE_DEBUG_AGENT - enables @google-cloud/debug-agent on Google Cloud
  • ENABLE_PROFILE_AGENT - enables @google-cloud/profiler on Google Cloud
  • METRICS_COMPRESSION_LEVEL - sets the compression level for /metrics
  • STACKDRIVER_LOGGING - toggles the request logging format
  • UV_THREADPOOL_SIZE - sets the libuv thread pool size